I have a rootkit infection, possibly others

system · March 21, 2013, 4:22pm

I had a number of infections discovered by an Avast scan. I think one was identified as Sirefef-PL, another was a trojan located in services.exe, sorry I can’t be more specific as I don’t have those logs available.

I’m now just following the instructions from the ‘‘Logs to assist in cleaning’’ thread. Here is the output from Malwarebytes quick scan and I will follow ASAp with the other steps:

Malwarebytes Anti-Malware 1.70.0.1100
www.malwarebytes.org

Database version: v2013.03.19.08

Windows 7 Service Pack 1 x64 NTFS (Safe Mode/Networking)
Internet Explorer 9.0.8112.16421
Eve&Nick :: CojisComputer [administrator]

22/03/2013 3:00:52 AM
mbam-log-2013-03-22 (03-00-52).txt

Memory Processes Detected: 0
(No malicious items detected)

Memory Modules Detected: 0
(No malicious items detected)

Registry Keys Detected: 0
(No malicious items detected)

Registry Values Detected: 0
(No malicious items detected)

Registry Data Items Detected: 0
(No malicious items detected)

Folders Detected: 0
(No malicious items detected)

Files Detected: 1
C:\Windows\Installer{877a5bbd-f9d1-49dc-7095-f1442d311c15}\U\000000cb.@ (Rootkit.0Access) → Quarantined and deleted successfully.

(end)

system · March 21, 2013, 5:25pm

Attached are the logs from OTL

system · March 21, 2013, 6:19pm

The output log from the ‘aswMBR’ scan is attached.

essexboy · March 21, 2013, 6:23pm

Let me know how the computer is on completion of these runs

Warning This fix is only relevant for this system and no other, using on another computer may cause problems

Be advised that when the fix commences it will shut down all running processes and you may lose the desktop and icons, they will return on reboot

Run OTL

[*]Under the Custom Scans/Fixes box at the bottom, paste in the following

https://dl.dropbox.com/u/73555776/OTL_Fix.GIF


:OTL
[2013/03/22 03:24:40 | 000,004,608 | -HS- | M] () -- C:\Windows\assembly\GAC_32\Desktop.ini
[2013/03/22 03:24:40 | 000,006,144 | -HS- | M] () -- C:\Windows\assembly\GAC_64\Desktop.ini

:Files
C:\Windows\Installer\{877a5bbd-f9d1-49dc-7095-f1442d311c15}

:Commands
[resethosts]
[emptytemp]
[CREATERESTOREPOINT]
[Reboot]

[*]Then click the Run Fix button at the top
[*]Let the program run unhindered, reboot the PC when it is done
[*]Open OTL again and click the Quick Scan button. Post the log it produces in your next reply.

THEN

Download and Install Combofix

Download ComboFix from one of the following locations:
Link 1
Link 2

VERY IMPORTANT !!! Save ComboFix.exe to your Desktop

IMPORTANT - Disable your AntiVirus and AntiSpyware applications, usually via a right click on the System Tray icon. They may otherwise interfere with our tools. If you have difficulty properly disabling your protective programs, refer to this link here

[*]Double click on ComboFix.exe & follow the prompts.
[*]Accept the disclaimer and allow to update if it asks

http://img.photobucket.com/albums/v706/ried7/NSIS_disclaimer_ENG.png

http://img.photobucket.com/albums/v706/ried7/NSIS_extraction.png

[*]When finished, it shall produce a log for you.
[*]Please include the C:\ComboFix.txt in your next reply.

Notes:

Do not mouse-click Combofix’s window while it is running. That may cause it to stall.
Do not “re-run” Combofix. If you have a problem, reply back for further instructions.
If after the reboot you get errors about programmes being marked for deletion then reboot, that will cure it.

Please make sure you include the combo fix log in your next reply as well as describe how your computer is running now

system · March 21, 2013, 8:22pm

Thanks for all your assistance Essexboy, I’ve attached the logs for ComboFix and the second run of OTL.

I can’t say anything definitive about the performance of my computer right now. I only knew about the infection because Avast! 8 alerted me continuously that it was detecting and blocking malware…it isn’t doing that anymore but then I only have an out-of-date AvastPro version after a system restore. I’m getting that fixed now.

I was hoping you would be able to tell me from the logs whether this has cleared the problems? How safe would I be to go ahead and use this system for emails, banking and online purchases? That is my main concern right now.

essexboy · March 21, 2013, 8:48pm

I would like to run one more programme to confirm that it has all gone

[*] Download RogueKiller and save it on your desktop.

NOTE: If using IE8 or better Smartscreen Filter will need to be disabled

[*]Quit all programs
[*] Start RogueKiller.exe.
[*] Wait until Prescan has finished …
[*] Click on Scan

https://dl.dropbox.com/u/73555776/RKScan.GIF

[*]Wait for the end of the scan.
[*] The report has been created on the desktop.
[*] Click on the Delete button.

https://dl.dropbox.com/u/73555776/RKDelete.GIF

[*]The report has been created on the desktop.

[*]Next click on the ShortcutsFix

https://dl.dropbox.com/u/73555776/RKFixShortcuts.GIF

[*]The report has been created on the desktop.

Please post: All RKreport.txt text files located on your desktop.

system · March 21, 2013, 10:22pm

The RogueKiller program experienced a problem in the ‘delete’ phase, Windows closed it down. I ran it again from the ‘scan’ step onward and there weren’t any further issues. The first attached log is the first scan result and the second is the scan result from after the program failing, the third is the ‘delete’ log and the fourth is the ‘fix shortcut log’.

Did I make a mistake by running that RogueKiller program again after it failed?

essexboy · March 21, 2013, 10:27pm

OK I just wanted to double check on the services file as combofix did not replace it or call it infected

How is the computer now ?

system · March 22, 2013, 12:30am

Everything seems fine. If there are no other tests to be performed can I assume that my system is safe to use? Thanks for your help.

essexboy · March 22, 2013, 2:41pm

Subject to no further problems

I will remove my tools now and give some recommendations, but, I would like you to run for 24 hours or so and come back if you have any problems

Now the best part of the day ----- Your log now appears clean

A good workman always cleans up after himself so…The following will implement some cleanup procedures as well as reset System Restore points:

Remove ComboFix
[*]Hold down the Windows key + R on your keyboard. This will display the Run dialogue box
[*]In the Run box, type in ComboFix /Uninstall
(Notice the space between the “x” and “/”)
then click OK

http://i1224.photobucket.com/albums/ee362/Essexboy3/Misc%20screen%20shots/CF_Uninstall-1.jpg

[]Follow the prompts on the screen
[]A message should appear confirming that ComboFix was uninstalled

Run OTL and hit the cleanup button. It will remove all the programmes we have used plus itself.

We will now confirm that your hidden files are set to that, as some of the tools I use will change that
[*]Click Start.
[*]Open My Computer.
[*]Select the Tools menu and click Folder Options.
[*]Select the View Tab.
[*]Under the Hidden files and folders heading select Do not show hidden files and folders.
[]Click Yes to confirm.
[]Click OK.

Clear Restore Points

Go Start > All Programmes > Accessories > System tools
Right click Disc Cleanup and select run as administrator
When it pops up at the first prompt select OK after it has done some calculations the tabs will appear
Select More Options tab
Press Sytem Restore and Shadow Copies Cleanup button

https://dl.dropbox.com/u/73555776/disc%20clean.JPG

Now that you are clean, to help protect your computer in the future I recommend that you get the following free programmes:

http://img233.imageshack.us/img233/7729/mbamicontw5.gif
Malwarebytes.

Update and run weekly to keep your system clean

Download and install FileHippo update checker and run it monthly it will show you which programmes on your system need updating and give a download link

If you use on-line banking then as an added layer of protection install Trusteer Rapport

It is critical to have both a firewall and anti virus to protect your system and to keep them updated. To keep your operating system up to date visit
[*]Microsoft Windows Update

To learn more about how to protect yourself while on the internet read our little guide How did I get infected in the first place ?Keep safe

I have a rootkit infection, possibly others

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